( х + 10) 2 = (5 - х)2

Question

( х + 10) 2 = (5 - х)2

Answer 1

2х+20=10-2х
2х+2х=20-10
4х=10
х=4/10

Comments

10/4*

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спасибо :*

Answer 2

X+10=5-x
x+x=5-10
2x=-5
x=-5/2=-2.5